Home / 2,021.61-3,028.76-1,048.40

Finding the Fourth Proportional to 2,021.61, 3,028.76 and 1,048.40

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Solution

The fourth proportional to 2,021.61, 3,028.76 and 1,048.40 is: 1,570.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.61 : 3,028.76 = 1,048.40 : x
  2. Step 2: Convert to fraction form
    2,021.61/3,028.76 = 1,048.40/x
  3. Step 3: Cross multiply
    2,021.61x = 3,028.76 × 1,048.40
  4. Step 4: Simplify right side
    2,021.61x = 3,175,331.60
  5. Step 5: Solve for x
    x = 3,175,331.60/2,021.61
  6. Step 6: Final answer
    x = 1,570.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.